'small temple') is a small commemorative tomb (martyrium) designed by Donato Bramante, to mark the location of the crucifixion of St Peter.
Commissioned by Ferdinand and Isabella of Spain, the Tempietto is considered a masterpiece of High Renaissance Italian architecture.
[2] After spending his first years in Milan, Bramante moved to Rome, where he was recognized by Cardinal Giuliano della Rovere, the soon-to-be Pope Julius II.
Given all the transformations of Renaissance and Baroque Rome that were to follow, it is hard now to sense the impact this building had at the beginning of the 16th century.
Perfectly proportioned, it is composed of slender Tuscan columns, a Doric entablature modeled after the ancient Theatre of Marcellus, and a dome.